Do I need to close the lid during measurement with TL23?

Document ID

Document ID CO93

Published Date

Published Date 23/01/2018
Question
Do I need to close the lid during measurement with TL23?
Summary
Differences between EPA and ISO turbidity measurements.
Answer
The EPA versions TL2300 and TL2350 have no lid detection; the 'Read' button is active if the lid is open or closed.  The ISO versions TL2310 and TL2360 have a lid detection sensor, so the 'Read' button is only active with the lid closed.
 

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